With the development of industrialization,water pollution has become a universal issue in the world at present.Increasingly,the composite materials based on the carrier of graphene have been widely used in wastewater treatment.Three catalysts,graphene-based titanium dioxide composite (TiO2/RGO),magnetic graphene and graphene oxide,were prepared via hydrothermal method,coprecipitation method and Hummers method,respectively.The catalytic activities of three catalysts were investigated and their relative optimal conditions for treating coking wastewater were evaluated.The results showed that in the three systems of TiO2/RGO,magnetic graphene and graphene oxide,the removal ratios of COD and chrominance could reach up to 69.2% and 98.89%,76.99% and 98.26%,78.1% and 98.11%,respectively.Graphene oxide possessed the best performance on the treatment of coking wastewater,followed by magnetic graphene,while TiO2/RGO showed the worst characterization.Then,the BET test was carried out on the three systems.The characterizations of the untreated and treated secondary submerged water by FT-IR and GC-MS corresponded to the optimized experimental results.
Xu Wenyuan, Xu Yu, Liu Siqi, Fan Junjie, Chen Xi, Yang Shaoming, Liao Mengyin
. Study on coking wastewater treatment with graphene-based catalyst[J]. New Chemical Materials, 2023
, 51(9)
: 190
-197
.
DOI: 10.19817/j.cnki.issn1006-3536.2023.09.035
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